Shrug. Then one doesn't get to have kids! No one ever died of it, and surely using restraint instead of settling for a shit man and producing offspring into disadvantaged, deplorable, dependent-on-society situations isn't the better option???
Furthermore, anyone who really wants to be a parent can work hard from age 18 onward, and have a dozen years to attain education, jobs training, work experience, financial prudence, and find a good partner. And still be only 30 years old, which leaves a long window of fertility ahead, despite what the for-profit assisted reproduction industry would like you to believe.
If, in 12 years, someone fails to advance themselves enough to be employable, self-suffient, financially solvent, despite best efforts, then maybe they aren't suitable potential parents. We certainly don't need everyone to self-replicate on a burning planet. There are other viable, pleasant and healthy paradigms for a fulfilling life.
Bottom line is that EVERYONE owes it to society to be able to support themselves without public assistance before even contemplating reproduction.